Description
Emerson VE3006
Technical Specifications
- Signal type: 4-20mA analog input
- Channel quantity: 8 channels per module
- Isolation: Channel-to-backplane isolation
- Resolution: 16-bit A/D conversion
- Operating temperature: 0°C to +60°C
- Storage temperature: -40°C to +85°C
- Relative humidity: 5% to 95%, non-condensing
- Mounting: Ovation standard rack backplane installation
- Backplane communication: Ovation proprietary rack bus
- Fault detection: Open circuit detection for each input channel
Functional Features
- 8 independent analog input channels for 4-20mA transmitter signal acquisition.
- 16-bit high precision analog to digital conversion to guarantee measurement accuracy.
- Channel open circuit diagnostic function, reports broken wire fault to Ovation controller.
- Electrical isolation between field side and DCS backplane side to block ground loop interference.
- Built-in overvoltage and overcurrent protection for each input channel.
- Supports hot swap replacement under powered rack condition.
- Front panel LED status indicators for module running and channel fault status.
- Module self-test at power-up and continuous background self-test during operation.
Application Scenarios Thermal power plant Ovation DCS system, chemical plant Ovation control system, pulp and paper process control. Collect 4-20mA signals from pressure transmitters, temperature transmitters, flow transmitters and level transmitters.
Performance Parameters
- Measurement accuracy: ±0.1% full scale
- A/D conversion sampling rate: 10 samples per second per channel
- Channel isolation voltage: 1500V AC
- Wire break detection threshold: Configurable for 4-20mA loop
Material Composition
- Card front panel: Flame retardant plastic with silk screen printing
- Main PCB: FR-4 flame retardant printed circuit board with conformal coating
- A/D chip: Industrial high precision analog-to-digital converter
- Isolation device: Digital isolation chip
- LED indicator: Industrial LED
- Backplane connector: Gold plated pin connector
Structural Characteristics Standard Ovation I/O card form factor. Gold plated edge connector on rear side plugs into rack backplane. Front panel contains LED status lights and module handle for insertion and extraction. PCB circuit separates field analog signal circuit and digital backplane communication circuit.
Working Principle Field 4-20mA analog signals enter each channel of VE3006. Signal conditioning circuit adjusts signal level and provides surge protection. A/D converter converts analog current signal into digital value. The module communicates with Ovation controller via rack backplane bus and sends converted digital process data. The module continuously monitors each channel current value. If wire break is detected, fault flag is uploaded to controller.
Installation Requirements
- Align VE3006 card with rack guide slot, insert card steadily until backplane connector fully engages.
- Lock the card front panel handle to secure module in rack.
- Connect field transmitter cables to corresponding terminal block. Keep signal cable separated from high voltage power cable.
- Set module configuration parameters in Ovation engineering workstation after installation.
- Verify channel wiring and perform loop test before putting into service.
- Ensure cabinet grounding is reliable, grounding resistance less than 4 ohms.
Usage Precautions
- Do not connect voltage signal directly to analog input channel. Overvoltage will burn channel circuit.
- Use shielded twisted pair cable for field analog wiring. Shield single end grounding inside control cabinet.
- Hot swap operation must follow Ovation operation procedure.
- Do not touch gold plated backplane connector pins by hand to avoid contamination.
- Do not open PCB conformal coating. No field repairable components. Replace whole card on fault.
- Prevent metal debris falling into rack slot during installation.
